At Red Lotus Lash Salon in Beaverton, we recommend adding a little more umph to lashes that have extensions with lash serums. Lash extensions no matter how good or how light in weight, you will have some extra tears, snags and just plain gaps at times. But any true lash addict knows, you probably will not give them up at least for very long. One, always care for them with gentle foam cleanser with no additives or acids. Wash once to twice a day depending on how oily you are to keep from glue failure or stuck lashes. I use my spoolie to be accurate. Next, pat dry no rubbing and use a little Grande Lash at the lash line, not on skin. Finally it is all in the lash artist, if you get what you pay for pay for a great tec, with credentials and a service record to back it up. Proper lash placement and timely removal.
As for lash growth serums I personally like Grande Lash because I tend to have sensitive eyes and it works great with no sensitivity. I had new lash growth within a few weeks and it got better from there. Please check out the review of this serum in the link below.
Does GrandeLASH MD Work for Lash Growth? My Review of GrandeLASH MD - beLASHED